22238412 has 24 divisors (see below), whose sum is σ = 59302656. Its totient is φ = 6353808.

The previous prime is 22238393. The next prime is 22238413. The reversal of 22238412 is 21483222.

It is not an unprimeable number, because it can be changed into a prime (22238413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132288 + ... + 132455.

It is an arithmetic number, because the mean of its divisors is an integer number (2470944).

Almost surely, 2^22238412 is an apocalyptic number.

It is an amenable number.

22238412 is an abundant number, since it is smaller than the sum of its proper divisors (37064244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22238412 is a wasteful number, since it uses less digits than its factorization.

22238412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264757 (or 264755 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 22238412 is about 4715.7620805125. The cubic root of 22238412 is about 281.2124801307.

The spelling of 22238412 in words is "twenty-two million, two hundred thirty-eight thousand, four hundred twelve".